Recently, at the construction site of a unit in Mianyang, the country's largest single high-temperature alloy special-shaped flange parts with a diameter of 2.6 meters, a height of 1.8 meters, and a weight of 3.9 tons are being installed. After completion, the equipment will enter the debugging and trial operation stage.
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According to Zhang Chaojie, chairman of the manufacturer, Sichuan Yuanfang High-tech Equipment Parts Co., Ltd., Jiangyou High-tech Zone, Mianyang, this "cowboy hat"-like device is a NS3306 high-temperature alloy special-shaped flange "tailor-made" at the request of the demander. It is also my country's first NS3306 high-temperature alloy single largest flange component.
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According to reports, flange is also called flange flange disk or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. NS3306, the production material of this special-shaped flange, is a high-strength, high-hardness forging material with good wear resistance, fatigue resistance and corrosion resistance, and can maintain stable performance in harsh working environments. It is usually used for Manufacture of aerospace engines, construction machinery and other parts that require high strength and wear resistance.
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Zhang Chaojie said that because heat is generated during the cutting process of high-temperature alloys, which will increase the resistance of the material, it is difficult to produce special-shaped high-temperature alloy flanges.
Faced with the problem, the company started from product forging to finishing to establishing a database. Yuanfang equipment engineers drew on advanced experience at home and abroad, and the technical team continued to make breakthroughs. They tried more than a hundred cutting tools and adjusted cutting parameters tens of thousands of times. From using 10 tons of vacuum melting, vacuum electroslag remelting steel ingots and forging, which took nearly a year to create the special-shaped flange that now weighs 3.9 tons.
